Composition for closing punctures in pneumatic tires.



- UNITED STATES PATENT EErcE.

WILLIAM II. SIMMONS, OF SAN JOSE, CALIFORNIA, ASSIGNOR OF ONE-HALF TOHARLOW J AYRES, OF SAME PLACE.

COMPOSITION FOR CLOSING PUNCTURES lN PNEUMATIC TIRES.

SPECIFICATION forming part of Letters Patent No. 680,420, dated August13, 1901. Application filed March 25, 1901- Serial No. 52,840. (Nospeoimensi) To all whom, it may concern.-

Be it known that I, WILLIAM H. SIMMONS, a citizen of the United States,residing at San Jose, in the county of Santa Clara and State ofCalifornia, have invented certain new and useful Improvements inCompositions for Closing Punctures in Pneumatic Tires, of which thefollowing is a specification.

My invention relates to a composition for automaticallyclosing andsealing punctures in pneumatic tires for bicycles, automobiles, orvehicles in general.

It consists of the following ingredients in the proportions stated:crude petroleum-oil, two-thirds of a gallon; liquid asphalt preparedfrom asphaltic petroleum, one-third of a gallon; balsam of fir, fourounces; white lead ground in linseed-oil, one pound; any good make ofvarnish, two ounces; castoroil, one ounce raw 1inseed-oil,one-halfounce; olive-oil, one and one-fourth ounces. These ingredients are mixedat a temperature of from 120 to 180 of heat, being stirred con tinut llywhile mixed.

In the place of the caster-oil, raw linseedoil, and olive-oil anyessential oilmaybe used, the object ofthe oil being to prevent the otheringredients of the composition from evaporating and becoming hard.

This composition is adapted only for sin gletube tires and is appliedfrom the outside of the tire by injecting it through the valvestem. Itis then worked around, so as to be distributed equally throughout thewhole inner surface of the tube. The proper amount to use isone-fourteenth of a gallon for the average size of tire-that is to say,one and one-half inches in diameter and twenty-eightinch wheel.

The composition will remain soft and viscous for an indefinite period,and when the tire is punctured the composition will flow out through theorifice and will automatically seal and close the same.

The coating of this composition will not hinder a workman in the repairof large holes, cuts, or tears, but will rather be of assistance to him,as it closes small imperfections in his work.

This composition is not afiected by extremes of temperature or weatherand can be used in any climate.

I claim- 4 p 1. The herein described composition of matter consisting ofcrude petroleum-oil, liquid asphalt prepared from asphaltic petroleum,balsam of fir, white lead, and an oil, substantially in the proportionsspecified.

2. The herein described composition of matter consisting of crudepetroleum-oil, liquid asphalt prepared from asphaltic petroleum, balsamof fir, white lead, varnish, and an oil, substantially in theproportions speci fied.

3. The herein described composition of matter consisting of crudepetroleum-oil, liquid asphalt prepared from asphaltic petroleum, balsamof fir, white lead, varnish, cas tor-oil, raw linseed-oil, olive-oil,substantially in the proportions specified.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

WILLIAM H. SIMMONS.

lVitnesses:

FRANCIS M. WRIGHT, Z. A. DANIELS.

